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Professional Automotive Repair Technical Discussions for October 29, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Chevrolet Silverado 2500 6.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCHK29U72 I am overlooking something,I have spark, injector pulse and compression yet a dead miss on both cylinders 2 & 7 which by the way are fired consecutivly,7 then 2 in the firing order.My next step is to swap injectors 2 & 4 and see if miss follows injector.Any su... Trouble codes: P0300 |
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| 2007 Chevrolet Uplander LS 3.9L no foward drive VIN: 1GNDV23167 Scanned vehicle with over 20 transmission codes and 12 engine codes in codes failed since last ignition cycle. has P0722 speed sensor keeps coming back up. Also had many codes in engine side of data. Had many codes in body data side. Vehicle runs fine and has ... |
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| 1999 GMC Savana 3500 5.7L Lighting VIN: 1GTHG39R6X I'm stumped on this one-need help---turn signal bulbs both sides front and rear flash fast-we've replaced all bulbs-turn signal switch-head lite switch-flasher relay also-problem still there-we've taken the alternator out of the system-still flashes fast-even ... |
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| 1999 GMC Sierra 2500 SL 6.0L Poor Idle Quality, Hesitation, Misfire VIN: 1GTGK29U0X This truck stumbles on cold start, Modis reads "IC failure status- "yes"" on cylinders 6 and 7, but no codes for misfires. I swapped coils, wires and plugs and still the same issue on 6 and 7. I cleaned the MAF, throttle body, and top end with techron also. ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2005 GMC Canyon Z85 SLE 2.8L No Start VIN: 1GTDT19865 I finally got this one fixed. Thank you Todd from Michigan who hit it dead on. There were two issues. One was a bad connection in the BCM connector. The fix was just making sure it was firmly seated. It has been three weeks now and all is well. The seco... Trouble codes: P0650 (Mil control ckt problem), U1301 (Class 2 communication ckt low voltage), B0687 (Security system indicator low). |
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| 2006 Pontiac G6 2.4L Surge, Stall, Power reduced VIN: 1G2Z1555B2 Thanks to all that replied Pete was spot on do to the wreck that the car was in it had streched wires in thw wire loom however it was up closer to the Ubec repaired the two damaged wires one being red and white that was the main power wire to the Pcm the othe... Trouble codes: P0976 (2-3 SHIFT solinod LOW), U0073, P0700, P2544. |
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